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TIPD136

Active Volume Control for Professional Audio

Design files

TIPD136

Design files

Overview

This TI Verified Design implements a split-supply, high-performance volume control which attenuates a professional line-level audio signal with minimal distortion and noise. An input buffer preserves the behavior of the system independent of the audio input source impedance. A radio frequency (RF) filter on the circuit front end removes noise from outside the audio band, while a bidirectional transient voltage suppressor (TVS) diode protects against overvoltage spikes.

Features
  • Input and Output: Professional line-level audio signal (+4 dBu / 1.228 VRMS)
  • Includes RF filter and over voltage protection
  • THD+N at 1 kHz: < 0.0005% (-106 dB)
  • Gain deviation (30% to 100% potentiometer rotation): ±1.5 dB
  • Supply voltage: ±15 V
  • Utilizes OPA1604 High-Performance Audio  Operational Amplifier
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Bill of materials (BOM) — TIPD136
TIDR329.PDF (146 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Gerber file — TIPD136
TIDC223.ZIP (1977 KB)

Design file that contains information on physical board layer of design PCB

download Schematic — TIPD136
TIDC032.ZIP (2424 KB)

Detailed schematic diagram for design layout and components

download Schematic — TIPD136
TIDR328.PDF (86 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Audio op amps

OPA1604 — Quad, SoundPlus High-Performance, Bipolar-Input Audio Op Amp

Data sheet: PDF

Start development

Software

Support software

TIDC224 — TIPD136 Simulation

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIPD136 — Active Volume Control for Professional Audio
Download options

TIDC224 — TIPD136 Simulation

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Version: 01.00.00.00
Release date: Jan 8, 2014
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TIPD136 Simulation (zip)  — 50 K

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Hardware development
Reference design
TIPD136 — Active Volume Control for Professional Audio

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc224 or www.ti.com/lit/xx/tidc224/tidc224.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC224. Please update any bookmarks accordingly.
Support software

TIDC225 — TIPD136 Test Files

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIPD136 — Active Volume Control for Professional Audio
Download options

TIDC225 — TIPD136 Test Files

close
Latest version
Version: 01.00.00.00
Release date: Jan 8, 2014
open-in-new

View all versions

download

TIPD136 Test Files (zip)  — 184 K

SHA-256 checksum
Hardware development
Reference design
TIPD136 — Active Volume Control for Professional Audio

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc225 or www.ti.com/lit/xx/tidc225/tidc225.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC225. Please update any bookmarks accordingly.

Technical documentation

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Type Title Date
User guide Active Volume Control for Professional Audio Design Guide Jan 8, 2014

Support & training

TI E2E™ forums with technical support from TI engineers

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Disclaimer
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